Subtract 18/84 from 1/3
1/3 - 18/84 is 5/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
1/3 = 1 × 28/3 × 28 = 28/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
18/84 = 18 × 1/84 × 1 = 18/84 - Subtract the two like fractions:
28/84 - 18/84 = 28 - 18/84 = 10/84 - After reducing the fraction, the answer is 5/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/3-18/84 1/3-36/84 1/6-18/84 1/3-54/84 1/9-18/84 5/3-18/84 1/3-90/84 1/15-18/84 7/3-18/84 1/21-18/84